fossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 2 年前I just cited myself.mander.xyzimagemessage-square233fedilinkarrow-up1860
arrow-up1860imageI just cited myself.mander.xyzfossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 2 年前message-square233fedilink
minus-squareIntriguedIceberg@lemmy.worldlinkfedilinkEnglisharrow-up19·edit-22 年前It still equals 1, you can prove it without using fractions: x = 0.999… 10x = 9.999… 10x = 9 + 0.999… 10x = 9 + x 9x = 9 x = 1 There’s even a Wikipedia page on the subject
minus-squareClinicallydepressedpoochie@lemmy.worldlinkfedilinkEnglisharrow-up11·edit-22 年前I hate this because you have to subtract .99999… from 10. Which is just the same as saying 10 - .99999… = 9 Which is the whole controversy but you made it complicated. It would be better just to have them do the long subtraction If they don’t get it and keep trying to show you how you are wrong they will at least be out of your hair until forever.
minus-squareLaser@feddit.orglinkfedilinkEnglisharrow-up8·2 年前You don’t subtract from 10, but from 10x0.999… I mean your statement is also true but it just proves the point further.
minus-squareClinicallydepressedpoochie@lemmy.worldlinkfedilinkEnglisharrow-up4·edit-22 年前No, you do subtract from 9.999999…
minus-squareColeSloth@discuss.tchncs.delinkfedilinkEnglisharrow-up1·2 年前Do that same math, but use .5555… instead of .9999…
minus-squareBeardedGingerWonder@feddit.uklinkfedilinkEnglisharrow-up8·2 年前Have you tried it? You get 0.555… which kinda proves the point does it not?
minus-squareWandering_Uncertainty@lemmy.worldlinkfedilinkEnglisharrow-up5·2 年前??? Not sure what you’re aiming for. It proves that the setup works, I suppose. x = 0.555… 10x = 5.555… 10x = 5 + 0.555… 10x = 5+x 9x = 5 x = 5/9 5/9 = 0.555… So it shows that this approach will indeed provide a result for x that matches what x is supposed to be. Hopefully it helped?
It still equals 1, you can prove it without using fractions:
x = 0.999…
10x = 9.999…
10x = 9 + 0.999…
10x = 9 + x
9x = 9
x = 1
There’s even a Wikipedia page on the subject
I hate this because you have to subtract .99999… from 10. Which is just the same as saying 10 - .99999… = 9
Which is the whole controversy but you made it complicated.
It would be better just to have them do the long subtraction
If they don’t get it and keep trying to show you how you are wrong they will at least be out of your hair until forever.
You don’t subtract from 10, but from 10x0.999… I mean your statement is also true but it just proves the point further.
No, you do subtract from 9.999999…
deleted by creator
Do that same math, but use .5555… instead of .9999…
Have you tried it? You get 0.555… which kinda proves the point does it not?
???
Not sure what you’re aiming for. It proves that the setup works, I suppose.
x = 0.555…
10x = 5.555…
10x = 5 + 0.555…
10x = 5+x
9x = 5
x = 5/9
5/9 = 0.555…
So it shows that this approach will indeed provide a result for x that matches what x is supposed to be.
Hopefully it helped?